Traction control



Dec. 20, 1938. H; E. STIYCKLES 2,140,606

TRACTION CONTROL Filed Feb. 2, 1938 e mine. 2c, 1938 I I I 2,140,606

, UNITED STATES PATENT OFFICE TRACTION CONTROL Howard E. Stickles, Toledo, Ohio Application February 2, 1938, Serial No. 188,227

' 3 Claims. (01. 188-4) Thisinvention relates to traetive adherence ing the treads from the roadway or supporting control as between vehicle tires and the roadway region therefor. At such rear swung position the therefor. links are toggle-locked against shifting of the i This invention has utility as a non-skid device hub 11. The disks are in position for freely spin- 55 adapted to be controllably inserted and withning asv the treads 3 operate thereover. These 5 drawn between the tread of a wheel and its roadtreads may squeeze the knobs 25 into tractionway. 7 effecting position into the supportingroadway. Referring to the drawing: This operation may occur whether the way be I Fig. 1, is a fragmentary view toward the rear paved or'unpaved or wherever the vehicle may 10 axle of a motor vehicle having an embodiment be,v for effective holding and gripping action. 10 oi the invention therewith and in operative posi- The disk is free to turn in its transit with the tion; I Y vehicle while holding or providing a traveling r Fig. 2 is a plan view of the non-skid device of roadway for the tread 3. Fig. 1, with parts broken away, and showing in The offset 20 of the disk is a yieldable portion dottedlines the shift to out of useposltion}. which allows the active rim portion proper of 15 v Fig. 3 is aview on the line III-III, Fig.2; the disk to conform to the tire and road irregu- ,Fig. 4 is a. fragmentary view of details of the larities not only as out of the plane of the disk bottom disk; and but has a radial give at 26 suflicient to avoid dis- F 5 is a view, with parts broken away, of th tortion oi. the tread as to the wheel. In this opf control connection as from-the operator's seat of oration, the initial contactin of the disk by e 0 pthe vehicle. tire is on the higher portions 22 and the tread 3 i-, vehicle is shown provided with rear axle readily moves therefrom to the rib portions 23, T pl. Traction wheels 2 provided with treads 3 are d c as a y e di minimize t e carried by the axles of thevehicle with cha is. 4, radial creep-in accommodating the disk to this 25 Adjacentthe drivers seat, there is control lever traction action. As the emergency has passed 25 I 5 having grip portion fi'operable from ri a p the operator of the vehicle may efiect reverse to quadrant 8 for holding this lever in various; shifting of the lever 5 promoting such release by I thrown positions, Fro thi l v 5 having fix d reversing the gear on the vehicle so that the I s fulcrum 9 extends rod In to links H, l2. Bolts l3 te de cy or return shifting is p o o d by t e clamp collar [4 on theaxle l and locate hinge action of the tread on the disks, and there is 30 pin l5, from which extends arm Hi to hub 11. p om ed a co se fo working ut from under 1 This arm l6, intermediate the hinge pin l5 and the wheels without necessity for jac g up and the hub IT, has offset l8 by which link I l is cont n as y b t occasion for unt t nectedto one of the arms and link l2 connected disks in Working Position if independently of t s "3 to the other. This huh I] mounts therewith relamanual control lever 5. r

1 tlvely rotatable disk having central portion I9. W t s ed and it s desired to sec e by This portion l9 has flexible offset 20 therefrom to e at is: major disk or rim portion H. The portion 2| 1. A vehicle, an axle therefor, a wheel at the ha on its up er side inwardly ta rin lugs 22 axle, there being atread for the wheel, a bracket 40 t i a y extending. ribs 23 These ribs :3 fixed with the axle, an arm swingable from the 40 form the traction promoting portion to, beconbracket having fulcrum inclined toward the i by the tr 3 of the vehicle in thrusting wheel, a disk rotatable 011 the free end of said such rimof the non-skid disk against roadway 24. and control means f Shifting the disk 95 This causesadherent portion or knobs 25 on the to said ,fulcrum as an was mm cooperating PO51 .opposite side of this disk rim to engage such road, tlon with said tread between the tread and 45 -way' against slipping. g k1 1 r In practice, the disks are normally clear of the g d tract on dlsk having tread ro dway as pulled up under the chassis of the g g: 3 fi g vehicle; Asthese traction or propelling wheels m on e 0 er S an u 0 Set from the s f have effective road adherence, whether from or radial distortion between the hub and I smmmg or burying the operator m swing these 8. A non-skid disk with radially extending latdisks from the idle intermediate position under em] tra tion face inwardly from the periphery the vehicle toward the treads. This may occur providing a radially laterally flexible distortible when the wheels are spinning to work the disks region.

. .into operative position irlspacing or partly spac- HOWARD E. STICKLES. 

